Moral government theology (MGT), rooted in the philosophical definition of freedom as the "power of contrary choice," denies the fundamental Christian doctrines of God's perfection in knowledge, goodness, and power; original sin; human moral inability; the substitutionary satisfaction of God's justice in Christ's atoning death; redemption; and justification by the crediting of Christ's righteousness to believers by grace through faith apart from works. As documented in this article, these denials are unbiblical and are so serious as to warrant classifying MGT as non-Christian.